Under non-sequential mode, you may use b<]Ae!I'
m8:9Uv
Toroidal Lens which support aspheric surface y+"6Y14
';>A=m9(4%
or you may use Biconic Lens if you make use of conic constant alone to create aspheric surface. %RS~>pK1
2|re4
Hope this would help, bu tbear in mind that diffraction effect is not modelable in non-sequential mode.